Process for preparing a bituminous binder modified with plastic

Details Process for preparing a bituminous binder modified with plastic Process for preparing a bituminous binder modified with plastic

1990-09-26

1992-08-11

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 68, 524 70, 524 71, C08K 501

Patent

active

051379465

ABSTRACT:
A process for the production of a binder modified with thermoplastic synthetic material and a modified binder for building materials, especially road construction type materials are provided, in which for the formation of the binder, molten bitumen together with a thermoplastic material mixture, preferably an olefin polymer, are subjected to a homogenization treatment. The mixture containing bitumen and the thermoplastic material is rapidly accelerated followed by rapid braking. By this acceleration there is supplied to the mixture containing the bitumen and a thermoplastic material, in the form of kinetic energy, an amount of energy corresponding to the difference between the treatment temperature and the disintegration temperature of the thermoplastic material to form readily reacting molecular fragments of the thermoplastic material.

REFERENCES:
patent: 4314921 (1982-02-01), Beigenzein
patent: 4567222 (1986-01-01), Hagenbach et al.
patent: 4988747 (1991-01-01), Strommer

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